feat: add service center management module with CRUD functionality and status filtering

src/components/Sidebar.tsx

@@ -23,7 +23,8 @@ import {
   LogOut,
   Calculator,
   Wrench,
-  Target, User, History, Bell
+  Target, User, History, Bell,
+  Building2
 } from 'lucide-react';
 import { getUserName, getUserRole, logout } from '@/lib/auth';
 
@@ -53,6 +54,7 @@ const adminNavItems: NavItem[] = [
   { label: 'Swap Stations (P3)', href: '/admin/swap-stations', icon: Zap },
 
   { label: 'Damage & Maintenance', href: '/admin/maintenance', icon: Wrench },
+  { label: 'Service Centers', href: '/admin/service-centers', icon: Building2 },
   { label: 'Accounting', href: '/admin/accounting', icon: Calculator },
   { label: 'Hubs', href: '/admin/hub', icon: MapPin },
   { label: 'Reports', href: '/admin/reports', icon: BarChart3 },